Powder press



w; e;- KENDALL POWDER PRESS April 17, 1928.

Filed Dec. 4, 1925 &5. 43

2 Sheets-Sheet 1 INVENTOR William lilnezzdall.

ATTORNEY April 17, 1928. 1,666,212

' w. c. KENDA,I -L

POWDER PRESS Filed Dec. 4, 1925 2 Sheets-Sheet 2 I 1 F yA ATTORNEYrownnrtrn'nssf V "j 'This invention relatestda powder press, sideview ofIanQeIem'ent in Fig.f4;- Fig.-7 and-is an improvement ofxthepowder pressrepresents ane'nlarged fragmentaryportion described in my applicationfor Letter Pat. of Fig. 1 partly in seet-ion:; '-Fi .e showsia' V ent ofthe United States; filed April 14th, section ofFig. 3 theali g gnd.pjig' .9

6 1924; Serial Number 7065379. f f p indicates-a sectionofIFig. 8 on theline 9; 9. 55

I The object'of the inventionis the produc I The-powder press is shownwith-the suptif on ofamachine; whereby a plurality of reporting;frame"cOmprisingIthe similar legs "ceptaclesarefilled one after'theother with a 1 5' and 16', each of which? terminates at itspredetermined measured'quantity of powder upper "en'dfin the curved edge17. Pans 18 1 like rouge the latter being'pressed into each extend fromthe-upper portionsof said legs. 60 j receptacle, with'a po'rtionfthereofextending Thefbod'y' portionof'the piess comprises the" I ore'ritsftopedge with a spherical top sur-' members 20 and21; which-are connected byface. Theadhesion of the particlesof the tliejlerossfpiece'22.- Bolts'23flconnect "said rouge; or other powder suffices to' convert the legs.15. Sand '16 to the members 20gand 21. parti'c'les'the'reo'f into acompressed tablet, Amheupper ends of th'e members and21 which isavailable for use by rubbing on its are formed journal 'bearings withthe caps25, surface with a "powderfpuff. cloth andthe 'fforythe'ashaft26; with" the'wrist pin 275 like. {The-second object of theinventionisshelf 28 having"the projection 28 extends {the production of a press:with a pressing die, between'land connects 'the members 20 and V 2 0 theunder'surface of which is cleaned during 21; Guideplatesi80 are fastenedto the front the"operation of the press, seats to form a ends ofsaid'membersfandform guidesthe're- 1 I tablet-iwitha" clean and smoothouter face. 7/ with for thecrosshead 3L; A pair of pressg The thirdobject of'the invention is the proingdies 36 and 37"each-concaved attheir duction of afpowdeipress 'with'a rotatable plower endr withtheformer somewhat longer v 25 'di's'cfhavin'g, measuring openingsextending. than the latter, extend from and are detachl t-herethroughfor receptacles and the powder ablysecured to said cross'head'. Thewrist i V to be compressed into the latter. The'thickpine-27 engages theconnectingrod 4LQ,fwhic'h ness of the disc with its holes, provide measlatter' is in"connection withthe *cro'ss' head, i faring; means for therequisite quantity of "313 A. plate ll'has one .end supported upon 0powder for each receptacle. 3 The fourth obandfastenedito't-heupperfaces oftlie mem 'jeot; of'the'invention the production ofa. hers20,ah'cl21 ,"and braces '42 support the press with a rotatable disc,provided with other ends of said plat-e4 1, and are inturn: m'eanstoscrape off any powder that maybe fastenedto said members. An electricm0- spilledthereon. The fift lr object of the-intor L3,inthisinstancef'issupported upon v 35 ,vention is the productionof a presswith a land fastene'd'to thefplate 41. armature v35 pair ofv pressing'dies "operating simultaneshaft of the motor has fastenedthere'toouslyythe first die pressing powder into a the pinion L6." 'Journal lugs47 extendfrom .recel'atacle.and" the secondpressing die again thesaidelectric motor and have journaled I pressing the powder into saidreceptacle, to therein' theshaft 48-. j A spur. gear ,49. isfaseeOrinsUre a" clean smooth upperfface for the tened to one end of theshaft @8; andnmeshes. compressed powder; *j of "withthepinion 4E6.A-"pinionBO' is fastened 1 l rn'the'accompanying drawings Fig. 1 rep- I"to'th'e other end 'of the shaft 48." spur. resents a front elevation ofan; exemplificagear 51 is fastened to one end of the shaft 26 H6 1 f thi p dp wd p Fi 2 and meshes with the pinion 501 A spur gear 45 shows aleft hand side iew ofFigLlI; Fig. 3 52 is ffastenedto the other endof-the shaft 7 indicates an. enlarged section of Fig. 1 ,on 126'. Abrac'ktg53 wit-lithejournalbearings theflineB, 3 Fig.Ashows' an'enlargedse'e- 54-sis'fastene'cl toand' extends from the plate tion'of Fig. 3onthe line 4, 4"; 5 shows A i ertioa'l journal bearing v55 extends a topplanjview of some of the elements inup from='tlielbrac'ket 53."A'shaft'6O ;is"jour-- I .50 'dicated in Fig. 4; Fig. fishows a 'lefthand naledinth'e-journal bearings 54, andjto1one end thereof is fastenedthe pinion 61, which meshes with the spur gear 52, and to the other endof said shaft is fastened the bevel gear 62. A pedal lever 63, with thefoot plate 64 has one end pivoted to'the leg 16. A clutch lever 65 hasone end pivoted to the member .21, and a connecting rod 66 has one endpivoted to the lever 68, and its other; H

and 122 is fastened to the lower end of the -'oiitl'etport-ion '97 ofthe charging hopper. A

end is pivoted to the clutch lever 65,15 C6fii trol the usual clutchapparatus,- between-the spur gear 51 and the shaft 26. The rod 66 hasfastened thereto a collar 67 and passes through a lug 68, extendingfrona,the meme her 21. A spring 69 encircles the rod 66 and bears between thecellar r67 ,and the lug 68.

A table 'EO. is indicated with the projecting portion 71, \iihich,latterbearsonithe shelf 28 and isjfastened thereto by means of the screws 72.Round openings .73, 74 and 5 are formedin thetable 7 0 and the twolatteralso extend ithrouglrgthe shelf 28. Elonggated openings-76 arealso-.form-ed in the table 70. A boss 77 with a threaded axialopeningextends from-the projecting portlon 71. A waste chute 78 isformed'i-n the upper faceofthe table 70. An apron .79 ex- ;tends fromthe table and aguideopening 80 is formed (between said table andapron.

An inclined delivery chute .81 extends from and {below the projection?1, with its upper portion helo w the opening Supporting strips 182 andY83 respectivelyextend from zthe projection 71.,for the ,pan 8A,..and-from the; strip .83extends the pan 85. p v

A rotatable conveying disc 86 I has formed its axial center the hub 87,,and in its =perliphery the locking openings .88. A plu-ral- :ity ofconveying and measuring openings 90 extend through {the :disc.8 6 withtheir axial centers on a vcircle struck from theaxial ;center of saiddisc and ,hisecting the angles jformed iby -each pain- 0f line'sextending throughthe centers ,of the openings 90 and the saidaXialcenter .of t'he disc. .A shaft ,91 has its lower portion fastenedto the table 70 and extends through the disc .86 and its .hub 87, V Awasher 92 encircles the shaft 9:1

.and aunt 93 vissprovided for itsa pper end.

A charging hopper is indicated with the may portion 9 5, thechute {96 atits upper end and the nozzle shaped outlet.portion .97

. :at its lower end. A stirrer shaft 100 extends up through said hopperand through the heasringvfii ,A; collar 101 is fastened to the upper endof the shaft-lOO and hears' on .the top end of the hearingi55.

.102 is fastened to the shaft 100-and meshes witlithe bevel gear 62. v

A rotating packer designated 11111138 en- ,tirety .hy the gnnneral105rcomprises the upper sleeve portion 106. and the segmentalrshaped shoe .1107, the plane of-which la tter inclined to .thelongitudinal axis of the shaft 100. A ,screw 108 clamps-the sleeveportion 106 to the shaft 100.

tending theret-hrough. 7

formed at their ends the vertical slots 113,

A Ebevel gear The stirrer for the charging hopper comprises the shaft100 already referredto, with the supporting bars 110, 111, and 112 ex-The said bars have to secure the pair of rods 115 inclined to eachother, at their lower ends116. A;sleeve bracket w'iththeprojecting'flan'ges 121 indicated with theslee've 132, which has "formedtherewith the con-cavefl ejector (die 133., A spindle 134 extendsfromtliesleeve l32 and'is guided in the sleeve 131. [collar-135 isfastened tothespindIe 13s {at its upper end. spring 136 encircles thespindie .134 and'hears .betweenthejcollar 135 and the sleeve 181. An arm1 10 eXtends gfiqm ,the cross head 31 Iandfits other ,endkis locatd overthecollar 135.. e A ,slide bar, 141 with the unlocking' ,pin guidedinthe guide .opening QSQ, and

has formed in its lower face the rack-teeth I 143. A guide plate 144 isfasteneditolthe top face :of the apron'79 to maintain the slide bar 11-1 in proper position. A-pin 145 extends through thekaprtin/ZQ, andhasfastend {thereto thesegtmentahgear 146mm thellever The teeth of saidsegmentalgear mesh ,withthe rack tee-H 143 of the Sli ehar .1 11.

A connecting rod 152 has one .endpivote'jd to the lever 1&7 and ts}other .end is .in pivotal 7 connection w th thespur gear 52. A latch158-is pivoted to ,the slide ,ljar eijand is shown witlrtlie lockingtooth 154 at one end, and the pm 155 at the other end. A spring iim 156connects the pin 155 with .a ,pin v157e'xtendingwfroin the slide .har 14;1; The tooth V 154: adapted to lock with ith e'l'ocking' openinns 88.A locking bar 160 is pivoted atone end to thetop face of the-table .70,hyaineans of the pin 161. .Thebar 160 has formed at one edge thereof theconcaved portion :162

and the 1 locking heel 168, which latter is adapted to :lock with thelocking openings .88. pin 1641.;extends ,fronithe hh1fl60 antl a spring165 connects :thepin164 anda pin 166 extending from the table 7 0. 7

,An .angle shaped support ng,har 17,5 is fastened to ,the cross'niernber,22, and has forniedin itsouter fend theclea'rance opening176. [A slidehar 1T8 isslidahly support- 1 ed oirthe 1321 1175 Guide strips1.7,9a17e-fastened'to thebar fortheslide bar 178.1 ,A

wiper plate with the opening 181 has one end fastened to .theslidebar178. .Aii

angle shaped jhlock182 with ;the vertical serrated leg 188 extends fromthe other end and lower face of the-plate 180. Amo'vable tween theblocks 182' and 184:.

extends from one of the guide strips 179,

clamping block 184with the serrated face 186 isslidahly connected to theblock 182' means of the screws 188; A Wiper com prising a piece offabric'189is clamped be;- Af-pin"190 and a pin 191 extends from thewiperpl'a'te 180. 'A'spring 192 connects the pins 190 and arm 195fastened to the slidelhar 141-andhas formed therewith the heel 1:96,

which latter coacts with theouter edge-of the slide bar 178. A switch198 is connected to the leg 16, for the wires not shown, to

operate the electric motor The rouge padsto beproduced are eachdesignated in'their entirety by the numeral 200,"see .Fig. 4f Eachpad'comprises the disc shaped receptacle 201, having the tapered flange202, andthe compressed powder 203,

i so

with the spherical shaped upper face 204-; To produce the'pads'200, thereceptacles 201 are located inthe openings 90 ofthe disc 86, between theejector die 133 and the 1102} zle shaped outlet portion 97015 thecharging ho 3 er. Thesaid ho 3591 is chared with 1P ll a, s

the. powder, rouge or other inaterial to be packed and compressed intosaid receptacles; The operator now starts the electric motor 43, by"means of the switch 198,and then bears on the footfplate 6 4 toloclrxthe' (spur [gearj 51, ,tofthe shan- 26,"which then turns-in thedirection of the arrow A, vsee; Fig, 2, and by means thereof the cross'heafd 31 with the pressing dies 86 and 87 is, r e v eiprocated and theshafts 60 and 100 are turned. The shoe 107, the bars 110,111 and 112 andthe-rodslli') revolve withythefrotatio ns of the 'shaij't100. The liars110,- I111," 112 and the rods 1115 stir thevpowder in the eharginghopper, which'descendsinto the measuring openings 90 'ot the'd1sc '86when they are located under said hopper, and also fills and covers thereceptacles 201' in said opening 90 when in li'ne'withthe charginghopper, and the rot'atingpacker 105,1 3 virtue of the inclination ot itsshoe. 1.07 packs the powder into the receptacles.

The pressing die 37 compresses the powder 203 into the receptacle 201forming the spherical shaped upper face 204. :At the same time thepressing die 36 again compressesthe saidpowder in the receptacle locatedthereunder, to give itthe i'ro ier fin} ish. At the s'ametime theejector die 183 forces one of the'finished rouge pads through theopening 90 inline therewith,

which falls throughthe opening73 into the inclinedchuteSl, and from thelatter the are gathered as affinished product.

The ejector-die 133 also functions as a safety device to maintain theropenings 90 clear of receptacles that have been charged with powderbetween said die and the c'h'a rg 179111 the direction of the arrow D,and the located intoithe pan p ,disc 86the openings=76 allow any} powdersire to secure ing hopper,"so1that empty receptaclescan be located insaid designated openings" to' be I conveyed under the"c'harging hopper.-

lVhen thecross head 81' begins to rise,

the'seginental gear-1&6 and thelever 147 ref Volve 1n the'idirection ofthe arrow 13," Fig:

2, and, passes through the opening 181 of the I :1 I

wiper plate 180, andthe slide 1m- 141 moves mthe direction of the arrowC, (Fig and the locking tooth 154= 0 the l'atch '153 disc 86 beinglocked in position by the heel .163 otthe bar'ltiO. \Vh'en the unlockingw pin 142 strikes the locking bar 160, thel lock 'ing heeli163isunlocked from its-opening '88 in the (veen; At the same timethe ten- 7sion of the springl92 draws the'slide' bar wiper 1 89 bcarsagainst thebottom face of the pressmgdie 36 and cleans the'same.

lVhen the cross head 31 starts'todescen'd the segmental gear 146, 2, andth'eflev'er 14:7 revolve in a directioncpposite the are 1 90 Town, andthe-slide bar 141 movesin a direction opposite to the arrow 0' and theopeningj181 of the wiper plate 180 is located in proper position for thepressing die 36 to pass therethrough, by means [of the heel 7.196. Whilethe slide bar 141 is moving in a direction. opposite to the arrow; C,the tooth 154 of the latchf153. lockswith one ofthe openings 88ofth'efdisc 86 and moves said disc through an-arec equa'lto adistaneehetwjeenja pairofit's openings 8 8'-to locate its openings 90inproper position. WVhile the cross head 31 is descending the arm 1:401

bears on; the collar 135ofthe spindle 134,

and the ejector die 133 forces the finished v I ceptaclef rouge padthrough the O penlhg73 It will ,loelnoted that while onejre 201is beingfilledjwith its po der, the press; ing dies 36 and 37 each compresses:the pow de'r in a receptacle located in line therewith, I

i i i i 1.

andgthe ejector die 133,;discharges one of the finished rouge. pads 200from the mag chine, WVhile the portion of the disc 8Gis" wiper124tclean'sthe upper face of anypowrevolving from under the: charginghopper toJthe location of the pressing d1e' 3T, the v i i i I derspilled thereon and directs it to the waste chute 78', and t'rom thelatter it falls During the rotation of the that may collect under saiddiscto-itall into the'pan 8 1'. The opening 75 allow's powder I be madein the I described'iiiy inventioii' what I 'de- 1. In a powder press thevcombination of,

a shaft journaled therein, means 'fto inter-- unlocks from its lockingopening 88 of the I f disc 86', and thela'tter remains atare stfthe"mittently rotate the shaft, a reciprocating cross head in the presscoacting with said shaft, a table in the press with a plurality ofopenings for the escape of powder oper ated upon, a disc pivoted to thetable and having a plurality of measuring openings extendingtherethrough adapted to convey receptacles for said powder, a slide barguided in the table, means between the shaft and said slide bar toreciprocate the latter, means between theslide bar and disc tointermittently revolve the latter, means on said table to lock said discin position at predetermined intervals,an'ejector die normally s-lidablymaintained over the path of the openings in said disc, meansconnected tosaid cross head to force said ejector die through the openings of saiddisc as they are located in line therewith and to .torce receptaclescharged .with powder therefrom,

a charging hopper with its outlet end over said disc in the path of theopenings thereof, a stirrer 1n sa d hopper, means 1nterposed betweensaid shaft and stirrer to turn the latter and a pair of pressing diesextending fromsaid cross head in the path of the openings extendingthrough said disc.

2. In a powder press the combination of a body portion, a shaftjournaled in the body portion, a'reciprocating crosi head guided in saidbody portiqn and coacting with said shaft, a table in the press with aplurality of openings therethrongh for the escape of powder operatedupon, a disc pivcted to 'the table and having a pluraljit'y of measuringopenings for said powder extending therethrough and having a pluralityof locking openings in its circumferentialedge, a slide bar guided inthe table,

means between the saidshatt and slide bar to reciprocate the latter, alatch pivoted to the slide "bar adapted to intermittently "lock with thelocking openings of said disc to move the latter, a "p n extending fromthe J slide bar, a locking bur withone'end pivoted to the table andhaving a locking heel extending therefrom to lock with the lockingopenings of said disc, a spring \vithone end fastened to the locking barand its otherend fastened to said table to tend to force said lockingbar to said disc to look its heel thereto, said pin on theslidebarladapted to contact with said locking bar to ,disen gage its heelfrom the locking openings of said disc, a guide bracket extending upfrom the, table, an ejector die, aspindle for said die extending throughthe guide bracket, a spring for the spindle to force the dienpwardlyover the upper face of saiddisc, an ,arm extending fromthe cross headadapted to bear on the spindle of the ejector die to force thereceptacles filled with compressed powder from saiddisc, a charginghopper fover the disc to charge receptacles located in {the openingsthereof ,With powder, a pair extending is ner;

of pressing dies extending from said cross head te -simultaneouslycompress the powder in a pair of receptacles ,contained in the openingsof said disc and means connected to ,thehopper to clean the disc ot'anyspilled powder, said pressing dies ejector die functioningsimultaneously. 7 p

3. In a powder press the combination of a disc having a plurality ofopenings extending therethrough, a reciprocating cross head .in thepress, a pressing die moving with the crosshead in the path oftheopeningsof said disc, the openings in the vdisc adapted .to havereceptacles located therein, means to charge said openings andreeeptacles with powder to be compressed in said receptacles by saidpressing die, means to eject the receptacles from the openings in saiddisc after having the powder compressed therein, a slide bar guided inthe press, means betweenfthe slide bar and disc to intermittently rotatethe latter, a wiper .plateslidably supported in the press, a Wipersupported by said wiper plate to clean the bottom face of the pressingdie, means between the slide bar and .wiper plate .to move the latter inone direction and other means ,to move it in an opposite direction.

4.111 a powder press the combination of an intermittently rotated discpivoted therea in, said disc-having a plurality of openings extendingtherethrough for receptacles, neans tocliarge said openings andreceptacles with powder, a reciprocating pressing .die in the path,oftheopenings of said disc to compress the powder into saidreceptacles, a reciprocating wiper plate in the press, a block extendingfrom the wiper plate, a movable clamping block for the firstblock, meansto secure awiper between said blocks adapted to bear against and cleanthe bottom end of said pressing die, and ,n'ieans-to,ejectthereceptacles from the openings of said disc after having thepowdercompressed therein. v

5. ;In a powder press the combination of an intermittently rota-ted discpivoted therein, said disc having a plurality of openings therethroughfor receptacles, means to charge said openings and rec-eptacles withpowder, a reciprocating pressing ,die in the path of tlieopeningsof-saiddisc to compress the' powder into said receptacles, areciprocating iper plate in the press, a block with a serrated legextending ,from the Wiper plate, a movable clamping block witha'serrated facecoacting with the first block, screws extending through themovable block in threaded engagement with the other block, a wip'er'clanped by the blocks adapted ,to bear against and clean the bottom end ofpressing die and vvmeans to ejectthe receptacles from said disc ttm11avigi .PQ QQ mpr sed therein- I spen ip s h easeie bf? table havingopenings for the disposal of tacles and for charges of powder for saidreceptacles pivoted to the upper face of said table, va. charginghoppervvith its outlet 10- cated over said disc and in the path of theopenings thereof, a scraper hearing on the upper face of thedi'sc toscrapeoff powder spilled thereon, a;reciprocating' cross head ceptacles.

guided in the press, pressing dies r'eciprocati Q the powder has Intestimony v vhereo f signntiire.

I IAM G. KEN ALL,

ing with the cross head to simultaneously compress powder in thereceptacles and f nieansto eject the receptaclesfrom {the open- 7 ringsin said 'discend from the press after been compressed ingthe re-

